Mathematician with top-tier cybersecurity and capital markets experience.contact: davidjaramillomartinez at pm dot me.
Cybersecurity
QuantGPT
While a visiting scholar at the Fields Institute, we partnered with a Tier-1 Canadian bank and reduced cryptographic threat assessment build times from weeks to milliseconds by developing an Agentic AI framework leveraging on LLMs and Knowledge Graphs.
Founding partner of Brick Flood, a Colombia-based technology consultancy delivering custom software, technical automation, and mathematically informed machine-learning tools for client problems that needed more than generic development.
Founder RoleClient discovery to delivery
Scoped ambiguous business needs, translated them into buildable technical requirements, and managed delivery through working software.
Product OwnerTeam and employee leadership
Led our development team, managed employees, and owned client-facing product decisions from requirements through delivery.
Technical EdgeMath when it mattered
Applied mathematical modeling and machine-learning methods when precision, prediction, or optimization was central to the product.
Factor Strategies
Momentum Strategy
Monthly equity ranking model using a private local market database via a transformer architecture.
Long Top 30--
Sharpe -- / Sortino --
Long plus Short--
Sharpe -- / Sortino --
As of--
Target--
Names--
Candidates--
Current output
Holdings
--
Rank
Ticker
Weight
Score
Price
12-1 Mom.
Short Mom.
Vol. 63d
Validation backtest
Selectable Window
--
Total return--
CAGR--
Sharpe--
Sortino--
Max drawdown--
Annualized vol--
Database
Private Source, Public Output
No raw feed exposed
Private parquet----
→
Sequence model--Transformer architecture
→
Public artifactsJSON + CSVPortfolio and derived backtest only
Academics
Publications
Variation of Canonical Height for SubvarietiesIn preparation.
An asymptotic for sums of Lyapunov exponents in families (joint work with P. Ingram and J. Mello).
Draft available on the
arXiv.
Research Interests
Unlikely intersections, canonical heights in families, algebraic dynamics, and complex dynamics.
Appointments
Lecturer, York University.MATH 1300 Differential Calculus with Applications, Fall 2024.
Education
Ph.D. in Mathematics, York University.May 2025.
M.Sc. in Mathematics, Universidad de los Andes.October 2019.
B.Sc. in Mathematics, Universidad de los Andes.October 2016.
Other Manuscripts and Theses
Algebraic geometric codes from elliptic curves.Masters Thesis. Advisor: D. Karpuk.
On the search of an optimal characterization to infinite matroids.Undergraduate thesis. Advisor: Alf Onshuus.
Awards and Scholarships
Carswell Excellence Award, York University.Toronto, Canada, 2021.
Full Graduate Assistant Scholarship, Universidad de los Andes.2017-2019.
Selected Events
Dynamics of multiple maps.American Institute of Mathematics, Pasadena, California, November 3-7, 2025.
Arithmetic, Algebraic and Analytic Dynamics.Etats de la Recherche SMF, CIRM, Luminy, Marseille, France, January 2025.
Number Theory in the Americas 2.Oaxaca, Mexico, September 2024.
Arizona Winter School 2024: Abelian varieties.Tucson, Arizona, March 2024.
MINT Graduate School: Facets of Complex Dynamics.Toulouse, France, June 2023.
Dynamics of Henon Maps: Real, Complex and Beyond.Banff International Research Station, April 2023.
Arizona Winter School 2023: Unlikely Intersections.Tucson, Arizona, March 2023.
Equidistribution and Arithmetic Dynamics.Stillwater, Oklahoma, June 2022.
Seminars
Topics in Non-Archimedean Dynamics.York University, Toronto, Canada, 2021-.
Class Field Theory.Universidad de los Andes, Cali, Colombia, 2018.
Algebraic Methods in Data Storage.Universidad de los Andes, Cali, Colombia, 2018.
Fourier Analysis for Number Fields.Universidad de los Andes, Cali, Colombia, 2018.
